EP 0349693 A3 19900926 - TWO TROUGH, ELECTROMAGNETICALLY VIBRATORY FEEDER
Title (en)
TWO TROUGH, ELECTROMAGNETICALLY VIBRATORY FEEDER
Publication
Application
Priority
JP 16625088 A 19880704
Abstract (en)
[origin: EP0349693A2] A three mass, two trough feeder transfers articles on first and second troughs by vibrating the troughs. First and second leaf springs support the troughs on a base with the troughs in line with each other and with one trough overlapping the other. The ratio of the spring constant of the first leaf springs to the first trough mass equals the ratio of the spring constant of the second leaf spring to the second trough mass. An electromagnetic driver between one of the troughs and the base is excited with a signal having a frequency with an angular velocity equal to the square root of the ratio. A plurality of feeders may be positioned radially outwardly about the periphery of a conical head for distributing articles.
IPC 1-7
IPC 8 full level
B65G 27/04 (2006.01); B65G 27/08 (2006.01); B65G 27/30 (2006.01); B65G 27/32 (2006.01); B65G 27/34 (2006.01)
CPC (source: EP US)
B65G 27/08 (2013.01 - EP US); B65G 27/30 (2013.01 - EP US); B65G 27/34 (2013.01 - EP US)
Citation (search report)
- [X] AT 360907 B 19800210 - TYROLIA FREIZEITGERAETE [AT]
- [X] AU 445032 B2 19740129
- [A] DE 3227415 A1 19840209 - UHDE GMBH [DE]
- [A] FR 2490892 A1 19820326 - FMC CORP [US]
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0349693 A2 19900110; EP 0349693 A3 19900926; JP 2565547 B2 19961218; JP H0218215 A 19900122; US 4979608 A 19901225
DOCDB simple family (application)
EP 88310728 A 19881114; JP 16625088 A 19880704; US 27070088 A 19881114